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WO1999032591A1 - Detergent et nettoyant particulaire - Google Patents

Detergent et nettoyant particulaire Download PDF

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Publication number
WO1999032591A1
WO1999032591A1 PCT/EP1998/008086 EP9808086W WO9932591A1 WO 1999032591 A1 WO1999032591 A1 WO 1999032591A1 EP 9808086 W EP9808086 W EP 9808086W WO 9932591 A1 WO9932591 A1 WO 9932591A1
Authority
WO
WIPO (PCT)
Prior art keywords
zeolite
alcohols
alkoxylated
zeolites
alkyl polyglycosides
Prior art date
Application number
PCT/EP1998/008086
Other languages
German (de)
English (en)
Inventor
Andreas Lietzmann
Rene-Andres Artiga-Gonzalez
Christian Block
Monika Böcker
Georg Meine
Ulrich Pegelow
Peter Schmiedel
Original Assignee
Henkel Kommanditgesellschaft Auf Aktien
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel Kommanditgesellschaft Auf Aktien filed Critical Henkel Kommanditgesellschaft Auf Aktien
Priority to EP98966298A priority Critical patent/EP1042439A1/fr
Priority to JP2000525515A priority patent/JP2001527126A/ja
Publication of WO1999032591A1 publication Critical patent/WO1999032591A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0034—Fixed on a solid conventional detergent ingredient
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/128—Aluminium silicates, e.g. zeolites
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/662—Carbohydrates or derivatives
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the present invention relates to a particulate, nonionic surfactant and builder-containing washing and cleaning agent or compound therefor, and a process for its preparation.
  • Detergents and cleaning agents contain non-ionic surfactants to increase their washing and cleaning performance, especially against dust / skin oil stains.
  • nonionic surfactants are liquid at room temperature, which makes it difficult to incorporate them into powdered agents.
  • the liquid nonionic surfactants are mostly used in the form of so-called compounds, which are generally produced by wet granulation with zeolite or another solid detergent builder and granulating liquid.
  • the nonionic surfactants are applied to the zeolite.
  • Zeolites A and P are frequently used zeolites.
  • the proportion of nonionic surfactant is limited by the absorption capacity of the zeolite; if the contents are too high, the particles produced are no longer flowable. These products are therefore not suitable for processing into and for direct use in powder products.
  • nonionic surfactants Another disadvantage of nonionic surfactants is their tendency to gel. In order to avoid gel formation and to increase solubility, a number of processes are known from the prior art for producing solid detergent particles which contain nonionic surfactants.
  • DE-A-41 24 701 discloses a process for the production of solid detergents and cleaning agents, in which solid and liquid detergent raw materials are mixed with simultaneous or subsequent shaping and optionally drying.
  • Anionic surfactants, builder substances and alkalizing agents are used as solid components and nonionic surfactants are used as liquid components.
  • the liquid nonionic surfactants are mixed with a structure breaker in a weight ratio of 10: 1 to 1: 1.
  • Structural breakers are polyethylene glycol or polypropylene glycol, sulfates and / or disulfates of polyethylene glycol or polypropylene glycol; Sulfosuccinates and / or disulfosuccinates of polyethylene glycol or polypropylene glycol or mixtures of these are used.
  • a builder component which uses crystalline sheet silicates of the general formula NaMSi x 0 2x + 1 ⁇ 2 0, where M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20 and contains an impregnating agent.
  • the builder component contains at least 60% by weight, based on the impregnated builder component, of crystalline phyllosilicates in granular form with bulk densities above 650 g / l.
  • the impregnating agent is preferably selected from ethoxylated nonionic surfactants, mixtures of nonionic and anionic surfactants, pasty aqueous nonionic surfactants and / or anionic surfactants, silicone oils and paraffin oils.
  • particles for use in detergents and cleaning agents which contain an active ingredient to be delivered to the agent, such as perfume, which is adsorbed on a porous carrier with a delivery barrier for the active ingredient.
  • the porous support is selected from zeolite X, zeolite Y and mixtures thereof.
  • the delivery lock contains the active ingredient to be delivered and an agent that enlarges the particles.
  • Sugar surfactants alkyl polyglycosides are used as a means of increasing the particle size.
  • European patent application 0 799 884 describes a mixture of ethoxylated nonionic surfactants and alkyl polyglycosides, which is applied to a carrier material in order to produce surfactant granules.
  • Zeolite A, zeolite P and NaC0 3 are mentioned as carrier materials.
  • WO 97/03165 describes a process for the preparation of alkyl polyglycoside granules.
  • the alk (en) yl polyglycosides and / or fatty acid N-alkyopolyhydroxyalkylamides are granulated in the presence of zeolites and / or water glasses.
  • a mixture of alkyl polyglycosides and ethoxylated fatty alcohols is used.
  • XXVII Journados del Comite Espanol de la Detergencia 1997, the calcium binding capacity and the adsorption capacity for liquids of zeolite A, zeolite X and zeolite AX are described.
  • the zeolites investigated also show good adsorption capacity with liquids. However, as with other zeolites, such as zeolite A and / or P, the zeolites described can only absorb limited amounts of nonionic surfactants for the production of granules, without any loss in the processability of the granules.
  • the agents known from the prior art have the disadvantage that granules containing nonionic surfactants cannot have too high a content of these surfactants without losing their flowability and their processability.
  • Granules, the liquid nonionic surfactants in an amount of approx. 23% by weight are frequently poorly flowable and from an amount of 25% by weight are hardly or no longer processable into granules or compounds.
  • highly compacted agents with high bulk density which have very high contents of liquid nonionic surfactants, gel when used as detergents, i.e. are poorly soluble.
  • the present invention was therefore based on the object of providing particles for use in detergents and cleaning agents which have a high content of liquid nonionic surfactants, in particular more than 20% by weight, are easy to process and the known solubility problems in the middle with high bulk density.
  • the particles according to the invention can either be used as the sole detergent component or can be mixed and made up with other particles which contain further detergent components.
  • component A contains zeolite of the faujasite type. It has the general formula M 2 / n OAI 2 Oyx Si0 2 y H 2 0, in which M is a cation of valence n, x stands for values which are greater than or equal to 2 and y can assume values between 0 and 20 .
  • the zeolite structures are formed by linking Al0 4 tetrahedra with Si0 4 tetrahedra, this network being occupied by cations and water molecules. The cations in these structures are relatively mobile and can be exchanged for other cations in different degrees.
  • the intercrystalline “zeolitic” water can be released continuously and reversibly, while for some types of zeolite structural changes are also associated with the water release or uptake.
  • the “primary binding units” Al0 4 tetrahedra and Si0 4 tetrahedra
  • secondary binding units which have the form of one or more rings.
  • 4-, 6- and 8-membered rings appear in various zeolites (referred to as S4R, S6R and S8R), other types are connected via four- and six-membered double ring prisms (most common types: D4R as a square prism or D6R as a hexagonal prism ).
  • S4R, S6R and S8R zeolites
  • D4R most common types: D4R as a square prism or D6R as a hexagonal prism
  • These "secondary subunits" connect different polyhedra, which are denoted by Greek letters.
  • zeolites The most common is a polyhedra, which is composed of six squares and eight equilateral hexagons and which is referred to as "ß".
  • ß equilateral hexagons
  • a variety of different zeolites can be realized with these units.
  • 34 natural zeolite minerals and around 100 synthetic zeolites are known.
  • the best known zeolite, zeolite 4 A is a cubic combination of ß-cages linked by D4R subunits. It belongs to the zeolite structure group 3 and its three-dimensional network has pores of 2.2 A and 4.2 A in size, the formula unit in the unit cell can be identified with Na ⁇ 2 [(AI0 2 ) 12 (Si0 2 ) 12 ] ' Describe 27 H 2 0.
  • the mineral faujasite belongs to the faujasite types within the zeolite structure group 4, which is characterized by the double six-ring subunit D6R (compare Donald W. Breck: "Zeolite Molecular Sieves", John Wiley & Sons, New York, London, Sydney, Toronto, 1974, page 92.
  • the zeolite structure group 4 also includes the minerals chabazite and gmelinite and the synthetic zeolites R (chabazite type), S (gmelinite type) , L and ZK-5. The latter two synthetic zeolites have no mineral analogues.
  • Faujasite-type zeolites are made up of ß-cages which are tetrahedral linked by D6R subunits, the ß-cages being arranged similar to the carbon atoms in the diamond.
  • the three-dimensional network of the zeolites of the faujasite type viewed in the process according to the invention has pores of 2.2 and 7.4 A, the unit cell also contains 8 cavities with a diameter of approx. 13 A and can be represented by the formula Na 8 6 [(AIO 2 ) 86 (SiO 2 ) 10 6] ' 264 H 2 0 describe.
  • the network of zeolite X contains a void volume of approximately 50%, based on the dehydrated crystal, which represents the largest empty space of all known zeolites (zeolite Y: approx. 48% void volume, faujasite: approx. 47% void volume). (All data from: Donald W. Breck: "Zeolite Molecular Sieves", John Wiley & Sons, New York, London, Sydney, Toronto, 1974, pages 145, 176, 177).
  • zeolite of the faujasite type denotes all three zeolites which form the faujasite subgroup of the zeolite structure group 4.
  • zeolite Y and faujasite and mixtures of these compounds can also be used according to the invention, the pure zeolite X is preferred.
  • x can have values between 0 and 276 and have pore sizes of 8.0 to 8.4 A.
  • the zeolite A-LSX described in European patent application EP-A-816 291 which corresponds to a co-crystallizate of zeolite X and zeolite A and in its anhydrous form has the formula (M 2 / n O + M ' 2 / n O) -AI 2 0 3 zSi0 2 , where M and M' can be alkali or alkaline earth metals and z is a number between 2.1 and 2.6.
  • This product is commercially available under the brand name VEGOBOND AX from CONDEA Augusta SpA
  • Another preferably used mixture of different types of zeolite is a mixture of zeolite X and zeolite A, which are processed together in a spray tower, for example, and are present as a pure mixture with defined crystals of zeolite X and zeolite A.
  • Y-type zeolites are also commercially available and can be expressed, for example, by the formulas Na 56 [(AI0 2 ) 56 (Si0 2 ) 136 ] ⁇ x H 2 0,
  • x stands for numbers between 0 and 276 and have a pore size of 8.0 A.
  • finely crystalline, synthetic and bound water-containing zeolite such as zeolite A, zeolite P and mixtures of A and P, can be used.
  • Zeolite MAP® commercial product from Crosfield
  • Zeolite MAP® commercial product from Crosfield
  • the particle sizes of the zeolites used in the process according to the invention are preferably in the range from 0.1 to 100 ⁇ m, preferably between 0.5 and 50 ⁇ m and in particular between 1 and 30 ⁇ m, each measured using standard particle size determination methods.
  • the alkoxylated C 8 -C 8 alcohols of component B are preferably ethoxylated, in particular primary alcohols having 8 to 18 carbon atoms and an average of 1 to 12 moles of ethylene oxide (EO) per mole of alcohol in which the alcohol radical is linear or preferably in 2 Position can be methyl-branched or can contain linear and methyl-branched radicals in the mixture, as are usually present in oxo alcohol radicals.
  • EO ethylene oxide
  • alcohol ethoxylates with linear residues of alcohols of native origin with 12 to 18 carbon atoms, for example from coconut, palm, tallow fat or oleyl alcohol, and an average of 2 to 8 EO per mole of alcohol are particularly preferred.
  • the preferred ethoxylated alcohols for example, C ⁇ 2 -d 4 alcohols containing 3 EO or 4 EO, C 9 include -CN alcohols with 7 EO, C ⁇ 3 -C 15 alcohols with 3 EO, 5 EO, 7 EO or 8 EO, C ⁇ 2 -C ⁇ 8 alcohols with 3 EO, 5 EO or 7 EO and mixtures of these, such as mixtures of C ⁇ 2 -C ⁇ 4 alcohol with 3 EO and C ⁇ 2 -C 18 alcohol with 7 EO.
  • the degrees of ethoxylation given represent statistical averages, which can be an integer or a fraction for a specific product.
  • Preferred alcohol ethoxylates have a narrow homolog distribution (narrow range ethoxylates, NRE).
  • the alkyl polyglycosides which are also used according to the invention have the general formula RO (G) x , in which R denotes a primary straight-chain or methyl-branched, in particular methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18 C atoms and G denotes the symbol which stands for a glycose unit with 5 or 6 carbon atoms, preferably for glucose.
  • the degree of oligomerization x which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; x is preferably 1.2 to 1.4.
  • alkoxylated preferably ethoxylated or ethoxylated and propoxylated alkyl C 8 -C 18 fatty acid esters, N-fatty alkyl amine oxides, polyhydroxy fatty acid amides or mixtures thereof can also be used as further nonionic surfactants.
  • the content of the nonionic surfactants in the finished compositions is preferably from 20 to 45% by weight.
  • the content of C 8 -C 18 alcohol alkoxylates alone is preferably above 20% by weight, in particular from 30 to 40% by weight.
  • the agents according to the invention can also contain anionic surfactants, such as C 8 -C 22 alkyl sulfates, C 8 -C 22 alkanesulfonates, C 8 -C 22 olefin sulfonates, C 8 -C 22 alkylbenzenesulfonates, C 8 -C 22 fatty acid ether sulfates, C 8 -C 22 fatty acid ester sulfonates, sulfated fatty acid glycerol esters, 2,3-C 8 -C 22 alkyl sulfates, salts, monoesters and / or diesters of alkyl sulfosuccinic acid (sulfosuccinates), sulfuric acid monoesters containing 1 to 6 moles of ethylene oxide ethoxylated straight-chain or branched C 7 -C 21 alcohols, fatty acid soaps or mixtures thereof.
  • anionic surfactants such as C 8 -C 22 al
  • the agents according to the invention can have all the substances normally contained in washing and cleaning agents, such as inorganic salts, alkali silicate, bleaching agents, bleach activators, graying inhibitors, foam inhibitors, salts of polyphosphonic acids, optical brighteners, enzymes or mixtures thereof.
  • the present invention furthermore relates to a process for the production of particulate detergents and cleaning compositions or compounds therefor
  • component B 20 to 60 wt .-% one or more alkoxylated C 8 -C 18 alcohols and alkyl polyglycosides, in which the zeolite is charged with the components of component B and is agglomerated in a manner known per se.
  • the zeolite is agglomerated with a mixture of the components of component B, if appropriate with the addition of further constituents.
  • Particularly stable particles or granules can be obtained if the components of component B are used separately during manufacture.
  • the zeolite is first impregnated with the alkoxylated C 8 -C 18 alcohol and then agglomerated in the form of a paste with the addition of the alkyl polyglycoside.
  • component A which is usually used as a suspension, is dried in a spray drying process with the addition of alkyl polyglycoside and optionally further components.
  • the alkoxylated C 8 -C 18 alcohol is then applied to the spray-dried powder.
  • a subsequent drying step can be dispensed with.
  • a particularly good adsorption capacity compared to alkoxylated C 8 -C 8 alcohols is achieved if zeolite of the faujasite type zeolite X is used, which is dried in the spray tower together with zeolite A, whereby an intimate mixture of zeolite X with A is obtained.
  • zeolite X and zeolite A are preferably in a ratio of 1: 5 to 5: 1.
  • the compounds of Examples 1 and 2 were prepared by granulating a mixture of C 8 -C 8 alcohol alkoxylate and alkyl polyglycoside with zeolite in a Lödige mixer. The fluidized bed was then dried.
  • Example 3 The compounds from Example 3 were prepared by impregnating zeolite with the C 8 -C 8 alcohol alkoxylate. The product obtained was then granulated with a 50% alkylpolyglycoside paste in a Lödige mixer. The drying took place in the fluidized bed.
  • the finished products had the composition shown in Table 1.
  • the solubility of the products was examined in the so-called L test. 8 g of substance were added to 1000 ml of water with a hardness of 16 ° dH at 30 ° C and stirred with a propeller stirrer at 800 rpm for 1.5 minutes. The undissolved solids were sieved with a sieve with a mesh size of 0.2 mm. The residue was dried to constant weight and weighed. The test results are shown in Table 1 below.
  • the zeolite contained 20% by weight of bound water
  • carrier beads were first produced in the spray tower from the components shown in Table 2.
  • the carrier beads were then impregnated with the alkoxylated C 8 -C 1B alcohols in a Lödige mixer.
  • the composition of the carrier beads and the mixing ratio of carrier bead and alkoxylated C 8 -C 18 alcohols are shown in Table 2.
  • the zeolite contained 20% by weight of bound water

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention concerne des détergents et nettoyants particulaires ou des mélanges appropriés contenant A) 40 à 80 % en poids de zéolite, dont au moins 25 % en poids, par rapport à la quantité totale, sont constitués d'une ou plusieurs zéolites du type faujasite, et B) 20 à 60 % en poids d'un ou plusieurs alcools C8-C18 alcoxylés et alkylpolyglycosides. Lesdits agents peuvent contenir de grandes quantités de tensioactifs liquides non ioniques, par ex. des alcools C8-C18 alcoxylés, sans que leur faculté d'écoulement en soit pour autant affectée, et présentent une bonne solubilité.
PCT/EP1998/008086 1997-12-22 1998-12-11 Detergent et nettoyant particulaire WO1999032591A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98966298A EP1042439A1 (fr) 1997-12-22 1998-12-11 Detergent et nettoyant particulaire
JP2000525515A JP2001527126A (ja) 1997-12-22 1998-12-11 粒状洗剤

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757216.2 1997-12-22
DE1997157216 DE19757216A1 (de) 1997-12-22 1997-12-22 Teilchenförmiges Wasch- und Reinigungsmittel

Publications (1)

Publication Number Publication Date
WO1999032591A1 true WO1999032591A1 (fr) 1999-07-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/008086 WO1999032591A1 (fr) 1997-12-22 1998-12-11 Detergent et nettoyant particulaire

Country Status (4)

Country Link
EP (1) EP1042439A1 (fr)
JP (1) JP2001527126A (fr)
DE (1) DE19757216A1 (fr)
WO (1) WO1999032591A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212169A1 (de) * 2002-03-19 2003-10-02 Sued Chemie Ag Waschmittelzusatz mit hohem Gehalt an nichtionischen Tensiden und schnellem Auflösevermögen
DE102006021553A1 (de) 2006-02-08 2007-08-16 Henkel Kgaa Fluidspeicher
WO2018087105A1 (fr) * 2016-11-08 2018-05-17 Basf Se Composition pouvant être utilisée en tant que tensioactif

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0593014A1 (fr) * 1992-10-12 1994-04-20 Kao Corporation Composition détergente non-ionigue pulvérulente
EP0618290A1 (fr) * 1993-03-30 1994-10-05 The Procter & Gamble Company Aides d'écoulement pour poudres détergents comprenant d'aluminosilicate de sodium et de la silice hydrophobe
WO1997003165A1 (fr) * 1995-07-10 1997-01-30 Henkel Kommanditgesellschaft Auf Aktien Procede de preparation de granules tensioactifs de saccharose
WO1997034982A1 (fr) * 1996-03-22 1997-09-25 The Procter & Gamble Company Systeme d'emission a zeolite charge d'une barriere de liberation
EP0799884A2 (fr) * 1996-04-02 1997-10-08 Unilever Plc Mélanges de tensioactifs, procédés pour leur préparation et composition détergentes sous forme de particules les contenant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0593014A1 (fr) * 1992-10-12 1994-04-20 Kao Corporation Composition détergente non-ionigue pulvérulente
EP0618290A1 (fr) * 1993-03-30 1994-10-05 The Procter & Gamble Company Aides d'écoulement pour poudres détergents comprenant d'aluminosilicate de sodium et de la silice hydrophobe
WO1997003165A1 (fr) * 1995-07-10 1997-01-30 Henkel Kommanditgesellschaft Auf Aktien Procede de preparation de granules tensioactifs de saccharose
WO1997034982A1 (fr) * 1996-03-22 1997-09-25 The Procter & Gamble Company Systeme d'emission a zeolite charge d'une barriere de liberation
EP0799884A2 (fr) * 1996-04-02 1997-10-08 Unilever Plc Mélanges de tensioactifs, procédés pour leur préparation et composition détergentes sous forme de particules les contenant

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EP1042439A1 (fr) 2000-10-11
DE19757216A1 (de) 1999-06-24
JP2001527126A (ja) 2001-12-25

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